MKI67 and gastrointestinal stromal tumor: Immunohistochemical results were CKpan (+), HCG (+), Inhibin-a (+), Ki-67 (hot zone + 70%), P63 (very few cells+), PLAP (−); 2 the proliferative phase endometrium, uterine myometrial leiomyoma, chronic cervicitis with Nabothian cyst; 3 chronic inflammation of the right fallopian tube, and no abnormal findings on the right ovary; 4 the nodule (2.3 × 2 × 1.5 cm) on the surface of sigmoid colon was mesenchymal tumor, in accord with gastrointestinal stromal tumor (Fig. 4B), immunohistochemically CD117 (−), CD34 (+), Desmin (−), DOG1 (−), Ki-67 (+ 15%), S-100 (−), SMA (−), SMMS-1 (−), CKpan (−).